2013 Lexus GX460 alarm

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1-6. Theft deterrent system
1
Before driving
GX460_OM_OM60J63U_(U)
■Tr i g g e r i n g o f t h e a l a r m
The alarm may be triggered in the following situations:
(Stopping the alarm deactivates the alarm system.)
■Alarm-operated door lock
●When the alarm is operating, the door s are locked automatically to prevent
intruders.
●Do not leave the key inside the vehicle when the alarm is operating, and make
sure the key is not inside the vehicle when recharging or replacing the battery.
■Alarm memory function
After the alarm is activated, when you unlock any door using a entry function, wire-
less remote control or mechanical key, the tail lights turn on for about 2 seconds to
inform you that the system was activated.
NOTICE
■To ensure the system operates correctly
Do not modify or remove the system. If mo dified or removed, the proper operation
of the system cannot be guaranteed.
●A person inside the vehicle opens a door
or hood.
●The battery is recharged or replaced
when the vehicle is locked.

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2-4. Using other driving systems
2
When driving
GX460_OM_OM60J63U_(U)
■When the vehicle has been parked in the sun
The LDA system may not be available for a while after driving has started. In such
cases, turn the LDA system off and turn it on again after normal temperature
returns. When the temperature in the cab in decreases and the temperature around
the camera sensor becomes suitable for it s operation, the functions will begin to
operate.
■Warning lights and messages for LDA
Warning lights and messages are used to in dicate a system malfunction or to inform
the driver of the need for caution while driving. ( P. 705)
CAUTION
■Before using the LDA system
This system provides information to the driver in accordance with the road geome-
try and the driving conditions. Be aware of your surroundings at all times, correct
the driving path while driving appropriately and be responsible for your own safety.
This system operates by using the camera to identify lane markers when the LDA
switch is on and the vehicle is being driven at the system operating speed.
Operation may be temporarily suspended if the camera cannot recognize the lane
markers or if the system cannot operate due to the road environment or driving
conditions. Also, since an alarm may sound unnecessarily if the lane markers cannot
be correctly identified, make sure to drive responsibly even while the system is
operating.
If a malfunction occurs in the system, the driver will be alerted by a buzzer and a dis-
play, and LDA operation will be temporarily suspended. However, this does not
present a problem to normal driving.
If the alert is displayed even after restarti ng the engine, have your vehicle inspected
by your Lexus dealer.

354
2-4. Using other driving systems
GX460_OM_OM60J63U_(U)
CAUTION
■Limitations of the pre-collision system
Do not overly rely on the pre-collision system. Always drive safely, taking care to
observe your surroundings and checking for any obstacles or other road hazards.
Failure to do so may cause an accident resulting in death or serious injury.
■Cautions regarding the assist contents of the system
By means of alarms and brake control, the pre-collision system is intended to assist
the driver in avoiding collisions through the process of LOOK-JUDGE-ACT. There
are limits to the degree of assistance the system can provide, so please keep in mind
the following important points.
●Assisting the driver in watching the road
The pre-collision system is only able to detect obstacles directly in front of the
vehicle, and only within a limited range. It is not a mechanism that allows careless
or inattentive driving, and it is not a system that can assist the driver in low-visibil-
ity conditions. It is still necessary for the driver to pay close attention to the vehi-
cle’s surroundings.
●Assisting the driver in making correct judgment
When attempting to estimate the possibilit y of a collision, the only data available
to the pre-collision system is that from ob stacles it has detected directly in front of
the vehicle. Therefore, it is absolutely necessary for the driver to remain vigilant
and to determine whether or not there is a possibility of collision in any given situ-
ation.
●Assisting the driver in taking action
The pre-collision system’s braking assist feature is designed to help reduce the
severity of a collision, and so only acts when the system has judged that a collision
is unavoidable. This system by itself is not capable of automatically avoiding a col-
lision or bringing the vehicle to a stop safety. For this reason, when encountering a
dangerous situation the driver must take direct and immediate action in order to
ensure the safety of all involved.

5
When trouble arises
745
5-2. Steps to take in an emergency
GX460_OM_OM60J63U_(U)
Starting the engine
Ensure that the shift lever is in P and depress the brake pedal.Touch the Lexus emblem side of
the electronic key to the
“ENGINE START STOP” switch.
If any of the doors is opened or
closed while the key is being
touched to the switch, an alarm will
sound to indicate that the start
function cannot detect the elec-
tronic key.
Press the “ENGINE START STOP” switch within 10 seconds of
the buzzer sounding, keeping the brake pedal depressed.
In the event that the “ENGINE START STOP” switch still cannot be oper-
ated, contact your Lexus dealer.
STEP1
STEP2
■Stopping the engine
Shift the shift lever to P and press the “ENGINE START STOP” switch as you nor-
mally do when stopping the engine.
■Replacing the key battery
As the above procedure is a temporary measure, it is recommended that the elec-
tronic key battery be replaced immediately when the battery is depleted.
(  P. 6 5 2 )
■Changing “ENGINE START STOP” switch modes
Within 10 seconds of the buzzer sounding, release the brake pedal and press the
“ENGINE START STOP” switch.
The engine does not start and modes will be changed each time the switch is
pressed. ( P. 1 8 5 )
STEP3

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GX460_OM_OM60J63U_(U)
Alphabetical index
Alphabetical index
A/CFront automatic air conditioning system
*...............................................398
Rear automatic air conditioning system
*................................................. 413
ABS.............................................................339
Active traction control........................340
Adaptive front lighting system ........ 227
Adaptive variable suspension system.....................................................325
AFS ............................................................. 227
Air conditioning filter ......................... 650
Air conditioning system Air conditioning filter ...................... 650
Front automatic air conditioning system
*...............................................398
Rear automatic air conditioning system
*................................................. 413
Airbags Airbag deployment conditions............................................ 130
Airbag precautions for your child.........................................................136
Airbag warning light ........................695
Front passenger occupant classification system........................ 143
General airbag precautions ..........135
Locations of airbags........................... 126
Modification and disposal of airbags .................................................. 140
Proper driving po sture ..................... 124
Side airbag precautions ................... 137
Side and curtain shield airbags deployment conditions ...................131
Side and curtain shield airbag precautions ........................................ 138
SRS airbags ............................................ 126 Alarm ............................................................ 121
Antenna .................................................... 426
Anti-lock brake system ...................... 339
Armrest .................................................... 560
Assist grips .............................................. 562
Audio input.............................................. 465
Audio system
Antenna...................................................426
Audio input........................................... 465
AUX port .............................................. 465
CD player/changer ..........................429
iPod .......................................................... 446
MP3/WMA disc................................437
Optimal use ......................................... 463
Portable music player ..................... 465
Radio ......................................................... 421
Steering wheel audio switch........ 466
USB memory ...................................... 454
Audio/video remote controls
*
Audio/video system*
Automatic air conditioning system Air conditioning filter ....................... 650
Front automatic air conditioning system
*.............................................. 398
Rear automatic air conditioning system
*................................................ 413
Automatic light control system....... 223
Automatic transmission Automatic transmission ...................190
If the shift lever cannot be shifted from P ................................................... 742
S mode ..................................................... 193
AUX port
*.............................................. 465
Auxiliary box ...............................539, 567
AVS............................................................ 325
A

835
Alphabetical index
GX460_OM_OM60J63U_(U)
Switch“ENGINE START STOP” switch .....................................................183
Engine switch ........................................183
“2nd STRT” switch .............................. 192
Center differential lock/unlock switch ....................................................327
“DAC” switch ...................................... 336
Emergency flasher Switch ............ 684
Fog light switch....................................237
Hazard light Switch .......................... 684
Heated steering wheel switch ....555
Height control off switch ............... 320
Ignition switch........................................183
Light switches.......................................223
Power door lock switch .....................52
Power window switch...................... 105
“RSCA OFF” switch ............................ 141
Rear window defogger switch
*.................................................. 417
Transmission shift switch ................. 193
Window lock switch ......................... 105
Wipers and washer switch........... 240
Tachometer .............................................. 199
Tail lights Replacing light bulbs ...................... 680
Switch .......................................................223
Talk switch
*.............................................496
Telephones switch
*.............................496
Theft deterrent system Alarm ........................................................... 121
Engine immobilizer system ..............119 Tire inflation pressure ......................... 643
Tire information
Glossary ................................................ 780
Size ............................................................ 776
Tire identification number.............. 775
Uniform Tire Quality Grading .... 778
Tires Chains .......................................................371
Checking .............................................. 636
If you have a flat tire .......................... 726
Inflation pressure ............................... 768
Information ............................................ 774
Pressure warning system.............. 636
Replacing ............................................... 726
Rotating tires ....................................... 636
Size........................................................... 768
Snow tires ................................................371
Spare tire ................................................ 726
Tire pressure warning system ................................................. 636
Tools ........................................................... 726
Total load capacity ...............................369
Towing Dinghy towing .....................................394
Emergency towing........................... 685
Trailer towing .......................................375
T
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.

838
GX460_OM_OM60J63U_(U)
What to do if...
What to do if...
A tire puncturesP. 7 2 6If you have a flat tire
The engine does not start
P. 1 1 9Engine immobilizer system
P. 74 0If the engine will not start
P. 74 6If the vehicle battery is discharged
The shift lever cannot be
moved outP. 74 2If the shift lever cannot be shifted
from “P”
The engine coolant temperature
gauge enters the red zone
Steam can be seen coming
from under the hood
P. 74 9If your vehicle overheats
The key is lostP. 74 3If you lose your keys
The battery is dischargedP. 74 6If the vehicle battery is discharged
The doors cannot be lockedP. 5 2Side doors
P. 5 7Back door
The horn begins to soundP. 1 2 1Alarm
The vehicle is stuck in mud or
sandP. 7 5 2If the vehicle becomes stuck